Finding the Fourth Proportional to 12,753,286.21, 19,127,956.83 and 4,664,370.05
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Solution
The fourth proportional to 12,753,286.21, 19,127,956.83 and 4,664,370.05 is: 6,995,833.66
Step by Step Solution
- Step 1: Write the proportion equation
12,753,286.21 : 19,127,956.83 = 4,664,370.05 : x - Step 2: Convert to fraction form
12,753,286.21/19,127,956.83 = 4,664,370.05/x - Step 3: Cross multiply
12,753,286.21x = 19,127,956.83 × 4,664,370.05 - Step 4: Simplify right side
12,753,286.21x = 89,219,868,955,544.92 - Step 5: Solve for x
x = 89,219,868,955,544.92/12,753,286.21 - Step 6: Final answer
x = 6,995,833.66
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.